Description
A component list as follows:
- Ultra BMX driver, stainless steel, bearing installed
- Configurable to 110x10mm bolt-on or 110x15mm thru-bolt axles – please choose correctly.
- 437-Z sprag clutch.
- A pack of Kluber IsoFlex LDS 18 Special A grease.
If bearings need to be replaced, sizes are as follows.
| Brake side | Center bearing (not user replaceable) | Driver support bearing | |
| Front | 6805 | – | 6805 |
| Rear | 6804 | 6805 | 6806 |
Spare bearings can be found below.





